I have a ton of LEDs from a flashlight that need 4.5-5V to turn on, and I want to control them with my Raspberry Pi 3.3v pins (The 5v pins are already in use). It looks like I need an NPN transistor, ...
I want to put in my PCB (two layers) an H-bridge motor drive that will control a high current motor (like several amps), that will be supplied by a separate power supply. Since it's a high current...
I’m working on an Arduino project where I want a motor( currently using a dc motor) to generate electricity and then reverse the polarity if it’s spun the wrong way. Any one know how to achieve this?I...
How to use an TXS0108E bi-directional logic shifter to convert 3.3V signals from a raspberry pi to a 5.0V signal to a relay board. I'm trying to trigger a 5 volt relay board using a raspberry...
Hi all,I'm working on a design that uses a power switch(picture showed below) with a 6-UFBGA package to switch between USB and battery backup power. I will be placing the components by hand a...
Hi everyone,I'm making a device with an SD card slot. The SD card holder is just a surface mount metal shell, and it has 4 foot pads that solder down, and are not electrically connected. I'd l...
Does anyone in Maker Space know the producer of headphone jacks marked with a K in a square? And honestly, who′d thought this was actually soldered onto a PCB? There′s almost no lead on the pins, no w...
I develop a lot of electronic projects and I want to share them but I want to get some money for it. Here are this option on site? You sell the project as PCB and after I receive some money.
